The TRS3253 series is a family of full-duplex RS-232 transceivers that operate on a single 3-V to 5.5-V supply and are compliant with TIA/EIA-232-F standards. The series includes three devices that differ in the number of drivers and receivers they contain: TRS3253E, TRS3253I, and TRS3253M. The TRS3253E has three drivers and five receivers, the TRS3253I has two drivers and five receivers, and the TRS3253M has one driver and five receivers.
These devices are designed to interface between TTL logic and RS-232 signals in applications such as point-of-sale terminals, factory automation equipment, and other industrial control systems.